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I have a weird wireless connection problem. The whole thing started today, when I installed my new router a D-Link DIR635 model after my previous router became very unreliable and faulty. I use this router the share a wired internet connection between a PC, a PS3, and to share it wirelessly to a Samsung laptop, and my Android device.

The wired connection seems to work properly, and the wireless also works on my Android phone, but my laptop connects very slowly, and frequently drops the connection. It's a Samsung S3 laptop using Windows 7, with a built-in wifi adapter.

I have not changed any kind of network configuration on the system, because it worked very simple and straightforward with the previous router until that died on me, and I can't find any relevant settings in the router settings.

I have tried restarting the connection, the router, emptying the DNS-cache, browser cache, cookies, restarting the computer, but none of this seems to affect the performance of the connection.

What else could be causing this?

PS: A recent development is that when I connect the laptop to recharge, the internet connection works again. Is there some relation between Windows power saving and wireless functionality?

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  • Most likely the WiFi adapter lowers its power drain (and therefore signal power) when running on battery. There may be a setting to control this.
    – Daniel R Hicks
    Commented Jun 29, 2012 at 11:39
  • You are right. In the device manager of the Control Panel, I have found a setting which allows the computer to turn it off to save power. I unchecked the setting, and now it seems to be working properly.
    – Zsombor Berki
    Commented Jun 29, 2012 at 12:39
  • next time, please don't cross post.
    – Sathyajith Bhat ♦
    Commented Jun 30, 2012 at 19:11

1 Answer 1

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I suspect that, with the router change, you've gone from a situation where the router signal was strong to one where it's marginal. How far it is between router and your usual laptop location? Is there substantial metal or concrete between the two?

Try your laptop in a location closer to the router.

(Note that some laptops will reduce the WiFi signal strength (to save battery) when running on battery. There may be a setting to control this.)

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